Radiator-valve.



\ T. H. SGHUTT.

RADIATOR VALVE.

APPLIoATIoN FILED MAY 31, 1912.

TNTTED STATES PATEN T OTTTQE.

THEODORE H. SCHUTT, OF CLEVELAND, OHIO, ASSIGNOR TO THE BISHOP-BABCOCK-BECKER COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF OHIO.

RADIATOR-VALVE.

T 0 all whom t may concern Be it kno-wn that I, THroDoRE H. SoHUTr, acitizen of the United States, and a. resident of Cleveland, county ofCuyahoga, and State of Ohio, have invented a new and useful Improvementin Radiator-Valves, of which the following is a specification, theprinciple of the invention being herein explained and the best mode inwhich I have contemplated applying that principle, so as t-o distinguishit from ot-herinventions.

My invention relates to a t-hermostatically operated valve, which isadapted particularly for use in a two-pipe or separate return line steamheating system. It is capable, of course, of other uses, but itmay bevreadily attached to such a system, and permits automatic opening of thevalve upon an excessive pressure being attained, as well as flushing ofthe valve by hand, when desired.

To the accomplishment of these and related ends, said invention, then,consists of the means hereinafter fully described and particularlypointed out in the claims.

The annexed drawing, and the following description, set forth in detailcertain mechanism embodying the invention, such disclosed meansconstituting, however, but one of various mechanical forms in which theprincipal ot the invention may be used.

In said annexed drawing F igure l is a vertical central section throughmy valve, showing the key with which the liushing attachment may beoperated, above the same; and Fig. 2 is a section on the line 2 2, Fig.l.

In Fig. l I show the external casing l, in which there is mounted a yokemember 2, having attached thereto a second yoke 3, which is formed witha circular slot l, running transversely and horizontally through thesaine, and having a circular aperture 5 extending from the upper portionot such slot. The lower pai't of the yoke is formed into an annuluswhich is adapted to scat upon the sides oit' the external casing at thepoint 7. A n aperture S extends vertically through this annulus, andupon the upper part of this apert-ure, a stop-per 9, attached to athermostat l0, is adapted to To the thermostat l0, there attached anupwardly projecting member ll, bearing a ball l2, which has a projection13 upon its upper surface.

The ball l2 is inserted in Specification of Letters Patent.

Application filed May 31, 1912.

Patented Oct. 21, 1913.

Serial No. 700,753.

the circular slot 4, and the projection will fit loosely in the circularaperture 5. This will permit of a ball-joint movement sufficient toallow the stopper 9 on the thermo stat some play in all directions. Thisis desirable since t-he thermostat is formed of thin metal sheets whichare not always of uniform thickness, causingthe disks to expandunequally at diiderent points, thus warping the thermostat and putt-ingthe stopper slightly out of alinement with the seat. By giving thethermostat a ball joint connection and by forming the stopper pearshape, the valve will automatically aline itself upon acting.

The casing will be apertured at let, and will be externally threaded topermit of the attachment of the conduit l5. This attachment will be inthe form of a ground joint, as shown. The casing will be apertured atits bottom for the purpose of at tachment to a drain. The member 3 hasan annular, upwardly projecting extension 16, which is externallythreaded, and is engaged by the collar 17. About this collar there ismounted a spring 1S, which presses against the removable cover 19, ofthe casing', and against the shoulder 2O on the neck 1T. Between theneck 1T and the member 3 there is attached a diaphragm 2l, which is heldon its out-er edge between t-he cover 19 and the shoulder 22 on the bodyot the casing. The top ot the cover is apertured, and the neck 1T isinternally threaded, thus permitting of the engagement with this neck ofa threaded key 23, shown above the valve. This key 23 has a shoulder24k, which is adapted to contact the top ot the cover, upon theinsertion and rotation of this key. The fluid will enter the valvecasing through the conduit l5, and will pass around the yoke 2, and thenout through the aperture S and the opening in the bottom ot' the casing.Upon the entrance of steam` the thermostatic valve 10 will be expanded,and since the pressure is prevented `from 'forcing the valve upward, byreason of the strong sgring 1S, the stopper 9 will be iorced downwardly,and will cont-act and close. the sea-t G. There is then no outlet fromthe valve casing, and it is desirable to provide means tor automaticallyopening some aperture, should the steam pressure within the casing riseto predetermined pressure. As the steam pressure increases in thecasing, the diaphragm 21 will be forced upwardly, and will carry with itthe yoke 2; thus lifting the annulus 6 from oft' the seat 7, and openingthe passage directly from the conduit l5 to the opening in the bottom ofthe casing. The pressure at which this action will occur can be veryaccurately regulated by adjusting the spring 18.

rIhe valve can be made up for all types of systems, and by simplyremoving the cover of the valve and substituting a different spring, itcan be adapted to operate at any desired pressure.

It will be noticed that the yoke 2 is spaced at its bottom portion fromthe bottom ot the Casing, thus permitting` the collection of dirt atthis point around the opening in the casing. At .frequent intervals itwill be desirable to remove this dirt, and this can be done most easilyby simply lifting up the yoke and permitting the water to carry thisdirt into the outlet pipe. By inserting the key 23 in the aperture inthe top of the casing, and rotating it into engagement with the neck 17,the latter may be raised until it contacts the under side of the coverto the casing. This action will be readily understood, as when theshoulder on the key contacts the top of the casing, the latter willmerely rotate in that position, and will gradually draw up the necktoward the top ot' the casing.

Other modes of applying the principle of my invention may be employedinstead of the one explained, change being made as regards the mechanismherein disclosed provided the means stated by any of the followingclaims or the equivalent of such stated means be employed.

I therefore particularly point out and distinctly claim as my inventionl. The combination with a casing having inlet and outlet openings; of anapertured member snugly engaging said casing between such openings; apivotally mounted thermostat; and a valve rigidly attached thereto andadapted to close the aperture in said member.

2. The combination with a casing having' inlet and outlet openings; ofan apertured member snugly engaging said casing between such openings; athermostat; and a beveled stopper attached to said thermostat and balljoint means connecting said thermostat and said member.

3. The combination with a casing having inlet and outlet openings; of anapertured member snuglyv engaging said casing be tween such openings; athermostat; a pear shaped stopper attached to the same, and ball jointmeans connecting said thermostat and said member, whereby said stopperis adapted to be forced automatically into alinement and engagement withsaid aperture.

4. The combination with a casing having inlet and outlet openings; of amember having an aperture adapted to register with said outlet opening;a thermostatic valve adapted to close said aperture in said member andthereby said outlet opening upon the entrance of steam to said casing;and a `flexible diaphragm mounted in said casing and attached to saidmember, said diaphragm being adapted to operate upon the attainment of apredetermined pressure, thereby raising said member from said outletopening.

5. The combination with a casing having inlet and outlet openings; of amember having an aperture adapted to register with said outlet opening;resilient means adapted to retain said member normally in such reggister with said outlet opening; a thermostatic valve adapted to closesaid aperture in said member and thereby said outlet opening upon theentrance of steam to said casing; and a vflexible diaphragm mounted insaid casing and attached to said member, said diaphragm being adapted tooperate upon the attainment of a predetermined pressure thereby raisingsaid member from said outlet opening.

6. The combination with a casing having spaced inlet and outlet openingsand a thire opening spaced from said other openings; and a diaphragmmounted across said casing between said third opening and said other'openings; an internally threaded sleeve mounted on said diaphragm andadapted to register with said third openings when operated; thermostaticvalve means mounted on said diaphragm and adapted to normally controlcommunication between said inlet and outlet openings; and a helicalspring disposed about said sleeve between said dia.- phragm and saidcasing and adapted to retain said thermostatic valve means in normalposition.

7. The combination with a casing having inlet and outlet openings; of amember snugly engaging in said casing and normally closing the same,said member having an aperture; an automatically operating valve tocontrol such aperture; and manually operable means adapted to move saidmember, thereby permitting direct eoinmunication between such inlet andoutlet opening even when said automatic valve is closed.

Signed by me this 29 day of `Hay, 1912.

THIEODORE H. SCHUTT.

Attested by- HORACE B. FAY, CHAs. S. QUAY.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. C."

